Refrigerator



FIG. 1 is a perspective view of a refrigerator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged view of area 8 in FIG. 1.

The broken lines depict unclaimed environment and form no part of the claimed design. The dash-dot broken lines define the bounds of the claimed design and form no part thereof. 

CLAIM The ornamental design for a refrigerator, as shown and described. 